The night is long that never finds the day.
esv::ixlast is the last signed integral type of class type, esv::ilast is long long int, esv::ixlast is esv::class_type<esv::ilast> .
esv::ixlast - esv::ilast, the class type of esv::ilast .
#include <esvcpp/core.hpp> int main() { constexpr esv::ixlast x = 87; esv::print(x); }